'\" te
.\"  Copyright 1989 AT&T
.\" Copyright (c) 2006, Sun Microsystems, Inc.  All Rights Reserved
.\" The contents of this file are subject to the terms of the Common Development and Distribution License (the "License").  You may not use this file except in compliance with the License.
.\" You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.  See the License for the specific language governing permissions and limitations under the License.
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.TH BZERO 9F "Jan 16, 2006"
.SH NAME
bzero \- clear memory for a given number of bytes
.SH SYNOPSIS
.LP
.nf
#include <sys/types.h>
#include <sys/ddi.h>



\fBvoid\fR \fBbzero\fR(\fBvoid *\fR\fIaddr\fR, \fBsize_t\fR \fIbytes\fR);
.fi

.SH INTERFACE LEVEL
.sp
.LP
Architecture independent level 1 (DDI/DKI).
.SH PARAMETERS
.sp
.ne 2
.na
\fB\fIaddr\fR\fR
.ad
.RS 9n
Starting virtual address of memory to be cleared.
.RE

.sp
.ne 2
.na
\fB\fIbytes\fR\fR
.ad
.RS 9n
The number of bytes to clear starting at \fIaddr\fR.
.RE

.SH DESCRIPTION
.sp
.LP
The \fBbzero()\fR function clears a contiguous portion of memory by filling it
with zeros.
.SH CONTEXT
.sp
.LP
The \fBbzero()\fR function can be called from user, interrupt, or kernel
context.
.SH SEE ALSO
.sp
.LP
.BR bcopy (9F),
.BR clrbuf (9F),
.BR kmem_zalloc (9F)
.sp
.LP
\fIWriting Device Drivers\fR
.SH WARNINGS
.sp
.LP
The address range specified must be within the kernel space. No range checking
is done.  If an address outside of the kernel space is selected, the driver may
corrupt the system in an unpredictable way.
